Field and Background of the Invention
This invention relates in general to animal feeders and in particular to a new and useful device for supplying liquid feed to animals from an automatic feeder and to a plurality of animal feeding stations.
Liquid devices for animals are known in a variety of designs and have proved satisfactory in practice. With a larger number of animals to be supplied with milk, it is further known to support the receptacle containing the milk on a structure which can travel on rails and to which a suction device is rigidly connected, and to move this structure to the individual stalls. The costs of such an arrangement are very high and require a great amount of power for displacing the heavy structure. The maintenance of such equipment which is susceptible to disturbances is also expensive since the rails laid on the floor of the animal housing are recurrently to be cleaned. Further, at every displacement, the milk in the receptacle is agitated, which is not favorable to its preservation. Nor is a controlled supply of amounts to individual animals possible.
Summary of the Invention
The invention is directed to a liquid supply device permitting the supply of a large number of animals with always exactly metered amounts of liquid feed and which is inexpensive yet highly reliable in operation and easy to maintain and handle.
In accordance with the invention, the device for supplying farm animals with a liquid feed from an automatic feeder comprises a flexible feed discharge line which is connected to the feeder and terminates in an animal operated discharge such as a sucker. The sucker is supported on a member such as a plate and it is moved by an overhead trolley-like conveyor through a path intersecting a plurality of feeding stations. Advantageously, the sucker comprises a nipple which is exchangeably inserted in a support plate which is laterally displaceable in a guide rail of a conveyor trolley which also includes a lower guide rail over which the plate is movable. The construction advantageously includes a yoke which is connected to the support plate which is rotatably supported on rollers and the plate itself is mounted for sliding displacement or guided displacement on a guide rail having slide surfaces.
In accordance with a feature of the invention, a flexible connecting line is supported at a level above the floor extending substantially parallel to the trolley conveyor. The supporting surface is advantageously below the liquid level of the mixer or the automatic feeder. It is also advantageous that the automatic feeder is disposed about intermediate the height between the guide rails of the overhead conveyor. The moving element of the conveyor advantageously comprises a chain or belt which is trained around a guide roller on a rack and pinion or friction wheel mechanism which is drivable in both directions by means of a motor which is advantageously designed as a stepping motor. The construction advantageously includes an identification unit which is provided on the support plate for the sucker and which is connected for a programmable control of the automatic feeder so that the feeder will deliver the type and quantity of feed desired at each station. Advantageously, one or more control marks are provided along the guide rails for the conveyor and a proximity switch is provided on each station which in engaged by the displaceable sucker.
The inventive device is very simple in construction and thus inexpensive in manufacture, and extraordinarily reliable in operation while at the same time permitting a controlled feed of great number of animals. A horizontally displaceable sucker or suction device connected through a flexible tube to a stationary automatic feeder, requires only a few constructional parts and a small power, since only the sucker itself and the tube are displaced. Moreover, the rails for the displacement extend above the floor of the stable or barn, so that they cannot be easily soiled, which substantially reduces the cost of attendance.
The primary advantage, however, is that with a programmable automatic feeder, the animals can be supplied individually with respective apportioned amounts of feed. For example, one certain group of animals can be supplied constantly with the same amount, or certain individual animals identified by the identification unit are supplied with predetermined amounts of feed to be taken off by suction. The feeding is thus well controlled.
Accordingly it is an object of the invention to provide an improved liquid feeder which makes it possible to effect feeding at a plurality of stations through a connection from a flexible line to an automatic feeding mechanism.
A further object of the invention is to provide an automatic feeder for liquid feed for animals which is simple in design, rugged in construction and economical to manufacture.
The various features of novelty which characterize the invention are pointed out with particularity in the claims annexed to and forming a part of this disclosure. For a better understanding of the invention, its operating advantages and specific objects attained by its uses, reference is made to the accompanying drawings and descriptive matter in which preferred embodiments of the invention are illustrated.
Brief Description of the Drawings
In the drawings:
FIG. 1 is a side elevational view of a feeder constructed in accordance with the invention; and
FIG. 2 is a section taken along the line 2--2 of the feeder shown in FIG. 1 on an enlarged scale.
Description of the Preferred Embodiments
Referring to the drawings in particular the invention embodied therein comprises a device for supplying farm animals with a liquid feed from an automatic feeder 4 which comprises a flexible feed discharge line 24 connected to the feeder 4 and terminating in an animal operated discharge or sucker 22. A member such as a plate 21 carries the discharge sucker 22 and conveyor means in the form of an endless cable 19 driven by a motor 15 over a drive pulley 17 which effects the movement of the plate member 21 with the sucker while it remains connected with the flexible connecting line 24 so that it may be indexed through a plurality of feeding stations at selected locations away from the feeder 4.
The device shown in FIGS. 1 and 2 and generally designated 1 serves the purpose of supplying a large number of animals in a controlled manner with a liquid feed. The device includes substantially a stationary automatic feeder 4 and a suction device or sucker 11 which is displaceable transversely relative to the feeder. The feeder 4 comprises a housing 5 placed on the floor 2 of the stable, a mixer 6 supported by the housing, and a supply vessel 7 in which the dry powdery ingredient of the feed is received. The dry powder and water added through a line 8 are introduced into mixer 6 where the liquid feed is prepared to be supplied to sucker 11 for the animals.
In the shown embodiment, the displaceable sucker 11 comprises a plate 21, and a nipple 22 which is fixed therein on a clamp 23 and connected, through a flexible tube 24, to a mixer 6 of feeder 4. Plate 21 is retained by, and displaceable on, an upper guide rail 12 and a lower guide rail 3. The two rails 12 and 13 are channel sections which are suspended from hangers 14 from roof 3 of the stable. To minimize friction, the plate 21 is supported through a yoke 26 by rollers 37 which travel on slide surfaces 20 of the upper guide rail 12.
Sucker 11 is moved by an endless rope 19 or conveyor trained around rollers 18 driven by a motor 15 having a drive pulley 17 secured to its output shaft 16. By designing the motor as a stepping motor, and providing control marks 29 on the upper rim 12, for example, the sucker provided with a proximity switch can be indexed into each operative station. Further provided on plate 21 may be an identification unit 28 cooperating with a programmable control 9 associated with automatic feeder 4, so that animals equipped with an identification mark can be supplied with a corresponding amount of feed.
Since automatic feeder 4 is set up about at the middle of rails 12 and 13, flexible tube 24 which rests on a trough-like support 25 extending below the lower liquid level of mixer 6, need have only half the length of rails 12,13 to reach any location whither sucker 11 can travel. The cooling of the warmed up feed in tube 24 is therefore negligible and the animals supplied through tube 24 need produce only a small sucking power. Along with a simple handling, the inventive device reliably ensures a controlled supply of liquid feed prepared in the automatic feeder to a large number of animals.
While specific embodiments of the invention have been shown and described in detail to illustrate the application of the principles of the invention, it will be understood that the invention may be embodied otherwise without departing from such principles.